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21283587058 = 278803135043
BaseRepresentation
bin10011110100100110…
…011100001111110010
32000221021211020200011
4103310212130033302
5322042044241213
613435541045134
71352266335136
oct236446341762
960837736604
1021283587058
119032036a78
12415b9b67aa
1320125b70c6
14105c9733c6
158487b803d
hex4f499c3f2

21283587058 has 8 divisors (see below), whose sum is σ = 31926022128. Its totient is φ = 10641579684.

The previous prime is 21283587047. The next prime is 21283587133. The reversal of 21283587058 is 85078538212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90085 + ... + 225127.

It is an arithmetic number, because the mean of its divisors is an integer number (3990752766).

Almost surely, 221283587058 is an apocalyptic number.

21283587058 is a deficient number, since it is larger than the sum of its proper divisors (10642435070).

21283587058 is a wasteful number, since it uses less digits than its factorization.

21283587058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213848.

The product of its (nonzero) digits is 1075200, while the sum is 49.

The spelling of 21283587058 in words is "twenty-one billion, two hundred eighty-three million, five hundred eighty-seven thousand, fifty-eight".

Divisors: 1 2 78803 135043 157606 270086 10641793529 21283587058